Top 6 Best 12000 Watt Portable Generators

If you live in an area where you constantly experience power outages – it may be due to weather conditions or a poor electricity system – then you are looking for a solution. A good, powerful portable generator can provide you with temporary electricity while also helping you when you’re on the go.

Best Portable 12000 Watt Portable Generators: Summary

  • A-iPower SUA12000E Generator
  • Pulsar G12KBN Heavy Duty Portable Generator
  • DuroMax XP12000EH Portable Fuel Generator
  • Rainier R12000DF Portable Generator
  • CAT RP12000E Portable Generator
  • A-iPower SUA12000ED Portable Generator

If You are in a hurry and want to get the best 12,000 watt portable generator, I’d recommend the DuroMax XP12000EH Generator.

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What Can a 12000 Watt Portable Generator Power?

A 12,000W portable generator will provide you with a lot of power, which will allow you to power most of your home’s appliances, lights, gadgets, and other electricity needs.

Portable generators come with a dedicated wattage. The wattage tells us how much power the generator can produce by using fuel (gas or propane). Normally, the more watts a portable generator can produce, the more it will be able to power. So you can imagine that a 12.000-watt generator can power almost your entire household.

However, you’ll need to keep an eye on a couple of things when picking your generator. An important thing is how long the portable generator will last you without needing to refill it. The larger the tank capacity is, the longer it will last you. Also, some generators can also get quite noisy, so you will want to choose a low-noise option, too.

A 12.000 Watt portable generator can be incredibly helpful for when you’re traveling, too. The great thing about portable generators is that you can use them anywhere – your home, when you’re traveling, or when you need a power supply practically anywhere.

If you’re wondering how a portable generator works, here’s an article that might interest you.

How to Choose a Portable Generator?

There are several factors you need to consider when choosing your 12.000W portable generator. We’ve already mentioned some of them, but let’s go more in-depth to make your decision much easier. These are the main factors to consider when choosing a portable generator.

1. Power usage

Arguably the most important thing you’ll need to know before you choose your portable generator is how much power exactly you will need.

It might be a great idea to calculate the wattage of all your appliances in your home or calculate how much wattage you will need wherever you might use the generator. That way, you’ll know for sure that the generator has enough power to offer.

Here’s a great guide that will help you determine how much power your home uses.

2. Portability

Obviously, since you’re choosing a portable generator, you’ll want to choose one that allows you to transport it and use it on the go.

If you’re constantly out and about, and you need a reliable, powerful source of power and electricity, then you should certainly invest in a portable generator. In terms of portability, you’ll want to choose a lightweight and highly-portable generator with wheels. This includes the generator’s weight.

3. The running time and fuel capacity

Another very important thing you need to know is how long the portable generator will last without you needing to refuel it.

This is determined partly by the fuel capacity and party by the fuel usage of the generator. Some devices offer you to use both fuel and propane, which can be helpful once you’re out of one or the other and can extend the running time.

4. Noise levels

A generator will, inevitably, get noisy. But if you’re serious about the noise levels, then you’ll want to choose a generator that will not be as noisy as the rest. You’ll find that there are many great portable generators that won’t be as noisy as you think they are.

Briggs & Stratton say that portable generators will have noise levels between 59 and 68 decibels at 25% from 23 feet away. The noise levels will largely depend on the working loads, the distance, and the type of generator.

5. Ease-of-use

A big thing when choosing a portable generator is that you’ll be able to use it easily and start it almost immediately. This is made easier when products have an electric start, which won’t require you to put that much effort into starting the machine.

6. Price

Lastly, you’ll also want to consider the price. However, be prepared to spend quite a lot if you’re looking for a top-quality generator.

How Long Will a 12000 Watt Generator Run?

The generator’s running time will depend on the generator’s fuel capacity and how much fuel it will use. Normally, generators will last anywhere between 8-12 hours at 50% usage, but some are specifically designed to run for significantly longer.

However, the average running time for 12.000 Watt portable generators seems to be at around 9 hours. But you will find some great options that will last even longer than 12 hours; for example, this A-iPower SUA 12000E Generator (Check it on Amazon) will last for 16 hours at 50% load!

How Much Fuel Will I Need for a 12000 Watt Generator?

This completely depends on how long you intend to use the generator. Typically, you’ll need anywhere between 6 and 12 gallons to top-up the generator’s fuel tank. And that will last you to anywhere between 8 to 12 hours of running time. 12.000Watt generators will vary in this respect, but you can expect the numbers to stay within those ranges.

Should I Buy a Portable Generator?

If you live somewhere where there are constant power outages to varying reasons, then yes, a portable generator is a fantastic choice. It provides a backup power system in case of power outages.

But the great thing about portable generators is that they will serve you well when you’re on the road. You just need to make the right choice.

Top 6 Best 12000 Watt Portable Generators

We’ve done extensive research and analyzed the best 12.000W portable generators currently on the market.

1. A-iPower SUA12000E Generator


  • Starting Power: 12.000W
  • Running Power: 9.000W
  • Noise Label: 78dB
  • Operating Time: 9 hours (50% load)
  • Fuel Tank Size: 7 Gallons
  • Weight: 206lbs

The A-iPower SUA12000E portable generator offers you plenty of power, but also portability for when you’re on the go. With 12.000 watts of starting power and 9.000 watts of running power, the generator is a great, versatile machine that will help you power most of your appliances.

This product is regarded by many as one of the best, if perhaps not the best, portable generator currently available. It’s powered by gasoline, and it has a fuel tank size of 7 gallons. But compared to other generators, this one is slightly more lightweight and portable, allowing you to use it practically anywhere you go.

And there will also be wheels included in the package, which will allow you to easily transport the generator. There are also many GFCI-protected outlets, providing you with a safe and reliable experience that will keep the water away from the system. Even in damp conditions, you can rely on this product to be safe.

There’s a lot to like about this portable generator, and you’ll be getting a good generator for the price asked.

Why This 12000 Watt Portable Generator
  • Has a high peak wattage of 12.000W.
  • Will run for 9 hours at a 50% load.
  • Easy mobility with the never-flat wheels included.
  • It’s safe to use thanks to GFCI-protected outlets.
  • Relatively affordable.
Keep in Mind
  • Can get quite noisy.


2. Pulsar G12KBN Heavy Duty Portable Generator


  • Starting Power: 12.000W
  • Running Power: 9.500W
  • Noise Label: Around 76dB
  • Operating Time: 12 hours (50% load)
  • Fuel Tank Size: 8 Gallons
  • Weight: 209lbs

The Pulsar G12KBN Heavy Duty Portable Generator is perhaps one of the most complete options around. The device boasts an operating time of up to 12 hours at 50% loads, which is fantastic running time, especially when compared to some other generators from the same range. That’s mainly thanks to the impressive 8-gallon fuel tank.

And you’ll also be able to choose between propane and gas for fuel. While the propane might not convert into gas fast enough, you’ll still be able to prolong the running time quite significantly. And with the added wheels and drop-down handles, moving this device around is very easy. Altogether, the generator has 7 outlets for various uses – from appliances to tools and other devices.

There are also various safety measures included in the package, which make the product much safer to use. This includes the low-oil shut-off, which will turn off the engine once the oil levels are low. With the automatic voltage regulation system, you won’t have to worry much about setting the device up.

Why This 12000 Watt Portable Generator
  • Will run for up to 12 hours at 50% load.
  • You can switch between gasoline and propane.
  • Great portability, as it’s easy to move around.
  • Strict safety measures.
  • Great value for money.
Keep in Mind
  • Questionable warranty and customer service.
  • Can’t convert propane to gas fast enough.


3. DuroMax XP12000EH Portable Fuel Generator


  • Starting Power: 12.000W
  • Running Power: 9.500W
  • Noise Label: 74dB
  • Operating Time: Around 12 hours (50% load)
  • Fuel Tank Size: 8.3 Gallons
  • Weight: 224lbs

The DuroMax boasts an impressive running time of 12 hours at 50% load and a good-sized fuel tank of 8.3 gallons. This maximizes the output of the portable generator. But this device is also relatively less noisy compared to some other generators, as it will emit (just) 74DB.

But arguably the biggest strength of this product is its durability and build quality. Made from high-quality materials, the DuroMax generator will last you for quite some time. And if you want to switch between propane and gas, you can do that. Propane is great if you’re looking to reduce the emissions from the generator.

And with the long-running time, this generator is a fantastic option for backup, and for construction sites, too. But it’s also a great option if you’re constantly on the go – with the wheels included, you can easily move this thing around and use it anywhere you need it. And the electric start and other safety features make this product easy and safe to use.

Why This 12000 Watt Portable Generator
  • Great operating time (12 hours at 50% load).
  • You can choose between fuel and propane.
  • Very reliable and high-quality build.
  • Great for a variety of uses.
Keep in Mind
  • The product support is not the best.
  • Comes with no cords.


4. Rainier R12000DF Portable Generator


  • Starting Power: 12.000W
  • Running Power: 9.500W
  • Noise Label: 72dB
  • Operating Time: 17 hours (25% load)
  • Fuel Tank Size: 6.6 Gallons
  • Weight: 200lbs

With the Rainier R12000DF portable generator, you’ll be able to get a lot of power for a relatively affordable price. With 12.000 watts of starting power and 9.500 watts of running power, the generator will provide you with enough power for a variety of uses.

However, do keep in mind that the build quality is not as sturdy as of some other generators, which is not the best if you’re looking to use it in a construction setting, for example. But using this product is still very easy, mainly thanks to the electric start. You’ll also be able to track how the generator is doing in terms of fuel and voltage, with the screen.

And for easier portability, there is a wheel kit included – when you’re on the go, you can attach the wheels and get going. This generator also has the dual fuel function, as you can easily swap between propane and gas.

Why This 12000 Watt Portable Generator
  • Good peak wattage at 12.000W.
  • Electric start allows for easy starting.
  • You’ll be able to see clearly the remaining fuel.
  • Wheel kit included for better portability.
  • Dual fuel option.
Keep in Mind
  • Not very sturdy build.


5. CAT RP12000E Portable Generator


  • Starting Power: 15.000W
  • Running Power: 12.000W
  • Noise Label: 75dB
  • Operating Time: 11.2 hours (50% load)
  • Fuel Tank Size: 13.2 Gallons
  • Weight: 348lbs

The Cat Portable generator is far more powerful than most portable generators on this list. It has a starting power of 15.000W and a running power of 12.000W. And with the 13.2-gallon tank fuel capacity, you’ll be able to use the generator for a whopping 11.2 hours at 50% load.

And another thing that we liked about this generator is just how sturdy it is. Made from high-quality and durable materials, this generator is unlikely to let you down anytime soon. However, there are some downsides that you should consider, too.

Namely, the device is relatively bulky – at 348lbs, it can be burdensome to carry around. However, you’ll be able to do it nonetheless with the wheels included. And if you’re not afraid to spend some extra money for a top-quality product, then this portable generator is the right choice for you.

Why This 12000 Watt Portable Generator
  • Impressive peak wattage and running power.
  • A good running time of 11.2 hours at 50% load.
  • Very durable and made from high-quality materials.
  • Clear LED screen and status report.
  • Electric start allows for easy use.
  • Fantastic performance.
Keep in Mind
  • Relatively bulky.
  • Expensive.


6. A-iPower SUA12000ED Portable Generator


  • Starting Power: 12.000W
  • Running Power: 9.000W
  • Noise Label: 79dB
  • Operating Time: 9 hours (max load), 16 hours (50% load)
  • Fuel Tank Size: 10 Gallons
  • Weight: 214lbs

Here’s another product from A-iPower that stood out from the crowd. The SUA12000ED portable generator is a good combination of durability and portability. It has more than enough to provide a great source of power for up to 16 hours at a 50% load.

Although it can be noisy at times, you’ll be able to enjoy the premium performance that this generator provides. It provides 12.000W of starting power and 9.000W of running power, which is a lot, although not as much as some other generators. But, the good news is that this power source is far more consistent than the rest.

And you’ll be able to track the data of the generator easily with the on-screen data overlay. Overall, a very worthy candidate for one of the best portable generators currently available.

Why This 12000 Watt Portable Generator
  • Good build.
  • Runs for 9 hours at max load, and up to 16 hours at 50% load.
  • Good starting and running power.
  • Data is easily trackable on the screen.
  • Keeps you safe.
Keep in Mind
  • Noisy


Wrapping Up

Choosing a great 12.000W generator will help you have an external power source in times of need. There are many choices to be had, and we’ve presented the most worthy candidates here.

However, if you’re looking for the most well-rounded option, the A-iPower SUA 12000E Generator (check it on Amazon) is perhaps the best option. With 12.000W of starting power, 9 hours of running time, and good portability options, it offers perhaps the best option all things considered.

For those who are slightly more budget-conscious, but are still looking for a fantastic 12000-watt portable generator, then the Pulsar G12KBN portable generator (Check it on Amazon)offers plenty of value for money. We consider the DuroMax XP12000EH portable generator (Check it on amazon) to be the best mid-range option.

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